This winter storm, consisting of two rounds of snow, was the first, widespread, winter storm to affect south-central and southeast Wisconsin during the 2004-05 winter season.  The first round of snow occurred during the late afternoon of Tuesday January 4, as moisture streamed north over a stalled surface boundary located across central Illinois.  South of the boundary the surface dewpoints were around 60.  Due to dry air near the ground, snowfall accumulations were generally light with 1 to 3 inches south of Interstate 94.  As a low pressure center deepened in the Plains and pushed into the Mid-Mississippi Valley by Wednesday evening, widespread moderate to heavy snow began to develop across Nebraska, Iowa, and northern Illinois.  This shield of snow pushed north into southern Wisconsin Wednesday night and continued into Thursday morning, January 6th.  The start time in the header strip above reflects the time that 6 inch accumulations were reached.  The 3-day total ranged from 6 to 8 inches across Green Lake, Marquette, Fond du Lac and Sheboygan counties to 10 to almost 14 inches along and near the Illinois border.  Specific totals included 13.6 inches at the Kenosha WWTP (Kenosha Co.), 13.5 inches at the Janesville Airport (Rock Co.), 13 inches in Juneau (Dodge Co.), 12 inches on the UW-Milwaukee campus (Milwaukee Co.), 12 inches in Lake Geneva (Walworth Co.) and Monroe (Green Co.) as well as across extreme southern Lafayette County, 11 inches on the southwest side of Madison (Dane Co.) and in Burlington (Racine Co.), 10 inches in Rock Springs (Sauk Co.), and 9.6 inches at NOAA's NWS office about 3 miles southeast of Sullivan (Jefferson Co.).  In addition to heavy snow, brisk, sustained winds of 13 to 22 knots (15 to 25 mph), with occasional gusts to 30 knots (35 mph), resulted in considerable blowing and drifting snow.  Newspapers reported dozens of vehicle accidents and spin-outs.

Winter Storm in COLUMBIA, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in DANE, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in GREEN, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in KENOSHA, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in OZAUKEE, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in SAUK, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in GREEN LAKE, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in WALWORTH, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in ROCK, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in WAUKESHA, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in LAFAYETTE, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in MARQUETTE, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in MILWAUKEE, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in JEFFERSON, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in SHEBOYGAN, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in FOND DU LAC, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in IOWA, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in DODGE, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in WASHINGTON, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.

Winter Storm in RACINE, WISCONSIN
From 06-JAN-05 05:00:00 to 06-JAN-05 16:00:00 (CST)
Reported by: OFFICIAL NWS OBS.